146 THE AMERICAN MONTHLY [May 
Botrytis cinerea hava no connection whatsoever with 
each other and that the former species: has no conidial 
stage of this type. It shows atall times a mycelium com- 
posed of large branching septate filaments,’ averaging 
from 10-15 microns in diameter. Sclerotia are always pro- 
duced abundantly in cultures and affected plants. The 
sclerotia are sometimes an inch long. The Peziza form is 
readily produced. The fungus is a good example of a fac- 
ultative parasite. It attacks a great variety of plants. (Bot. 
Gazette, 29 : 369.) . 
SrupiEs In MyxomycetEs.—E. Jahn in some cytolog- 
ical studies of one of the Myxomycetes, Dictydium umbi- 
licatum, obtained best results in fixing with Flemming. 
He succeeded in obtaining good nuclei by staining with 
Hematoxylin, Safranin and Gentian Violet. He did not 
succeed in obtaining karyokinetic figures. Chromatin 
threads and nucleolus can be made out very readily. The 
Dictydium granules described here have not heretofore 
been recognized in any other group of these organisms. 
Chemically they are differentiated because of their re- 
sistance to acids and alkalies. The chemical] nature was 
not.determined. They do not give the chemical reaction 
for cellulose, though they may prove to consist of substance 
related tocellulose. (Ber. d. Deutsch Bot. Gesellsch. 19:97.) 
TUBER-LIKE BoDIEs oF Cycas.—Mr. A. C. Life discuss- 
es the tuber-like rootlets of Cycas revoluta. The coral- 
like outgrowths have been known for a considerable 
length of time and there has been much discussing as to 
their nature. The author has made cultures of the tu- 
bercles on agar and from these he raised three different 
- bacterial forms, an organism resembling the Rhizobium 
of Schneider being obtained. The fungi and bacteria 
which are in cells in advance of the alga zone seem to pre- 
pare the way for the algw. The author says it is diffi- 
- eult to speak with any certainty with reference to the 
symbiotic relations which exist between these various or- 
